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3 years ago

What is cosine ? I really need this answer for my test tomorrow. Please help

Mathematics

2 answers:

stiv31 [10]3 years ago

4 0

Cosine is one of the three part for trigonometry.

You have sin, cos, and tan.

You can easily do this by understanding SOH CAH TOA.

Sin = OPPO. over HYPOTENUSE
Cos = ADJACENT over HYPOTENUSE
Tan = OPPO. over ADJACENT

I hope this helps!

Kisachek [45]3 years ago

3 0

Cosine is $\frac{adjacent}{hypotenuse}$ which applies to a right triangle. I hope that helps you.

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$dx^2 + cx + p = 0$

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$\alpha = 2\beta$

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$\frac{p}{d} = \beta^2$ -- (2)

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$\beta = -\frac{c}{3d}$

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Cross Multiply

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